Roller conveyors



p 1, 1964 P. HAESTAD ROLLER CONVEYORS Filed Feb. 25, 1962 FIG.!

INVENTOR Pe 'Cte r Hdestdd BY 47M 31 fir ATTORNEY United States Patent 3,146,869 ROLLER CONVEYORS Patter Haestad, Jernbanegaten 7, Oslo, Norway Filed Feb. 23, 1962, Ser. No. 175,104 Claims priority, application, Norway, Feb. 25, 1961, 139,243 2 Claims. (Cl. 193-35) The present invention relates to an improvement in roller conveyers, especially of removable type, comprising supports which are provided with rollers or cylinders. The supports for the conveyer in accordance with the invention are adapted to become interconnected by means of at least two rails, having the shape of two ribbons of steel, which are edgewise placed so that they may easily become bent or deviated in their longitudinal direction for adaption to a desired path of the conveyer.

The object of the invention is to provide for an improved mounting of such a roller conveyer.

In accordance with the invention such object is accomplished by providing the supports at their top portions with vertically directed, compressible slots, which receive and grip the steel ribbons.

In a preferred embodiment of the device of the invention the rollers or cylinders are mounted upon a shaft which at both of its ends is provided with a holder having gripping jaws separated by a slot, the jaws being advanceable toward each other to thereby become secured to the top portion of the rails.

An embodiment by way of example of the invention is below explained with reference to the drawing.

FIGURE 1 shows a cross section through a roller conveyer provided with an arrangement according to the invention.

FIGURE 2 is a perspective view of part of a rollerway provided with an arrangement according to the invention.

The rollerway is built up from supports comprising a transverse member 1, which at both of its ends is provided with a standard 2, the top of which carries at each end a compressible slotted holder 3 for steel ribbons 4. The slot forms the holder into two opposed jaws which receive the lower edge of a steel ribbon 4 between them. The jaws are compressed to grip ribbon 4 by the tightening of a stud 8. The top edge portion of the ribbon 4 is straddled by a somewhat similar but inverted compressible holder 5, which is provided with opposed jaws formed by a slot.

3,146,869 Patented Sept. 1, 1964 The jaws of holder 5 may be advanced toward each other by tightening a stud 9. Between each pair of holders 5 there is mounted a shaft 6 carrying two rollers 7. The ribbons 4 have relatively small thickness, so that they, without the use of any implement, may be bent to any desired curvature and be gripped by the holders 3 and 5. The conveyer may be given the desired slope by varying the depth of insertion of the ribbons 4 into the slots of either or both of said holders 3 and 5.

I claim:

1. A roller conveyor of movable type, comprising a plurality of supports spaced longitudinally of the conveyor, said supports each comprising a pair of standards spaced laterally of the conveyor and means connecting the standards of each pair, means for interconnecting said supports comprising two laterally spaced rails in the form of upright ribbons which may be bent to adapt the conveyor to a desired path, the upper portions of the standards being downwardly slotted to provide a pair of opposed jaws on each standard, the lower edges of each of the rails being received between the pairs of jaws on the respective sides of the conveyor, means to advance said jaws of each pair toward each other to grip the rails between them, a plurality of conveyor rollers spaced longitudinally of the conveyor, and means for mounting the rollers on the rails.

2. A roller conveyor as claimed in claim 1, wherein the means for mounting the rollers on the rails comprises a plurality of axles disposed transversely of the rails, at least one roller on each axle, a holder at each end of the axle journalling such end of the axle, each holder being upwardly slotted to provide a pair of opposed jaws, the holders being mounted upon the respective rails with the upper edges of the rails being received between the jaws of the holders, and means to advance said jaws toward each other to grip the rails between them.

References Cited in the file of this patent UNITED STATES PATENTS 1,906,288 Twornley May 2, 1933 2,438,527 Werner Mar. 30, 1948 2,696,283 Barry Dec. 7, 1954 FOREIGN PATENTS 706,868 Great Britain Apr. 7, 1954 1,204,771 France Oct. 10, 1959 

1. A ROLLER CONVEYOR OF MOVABLE TYPE, COMPRISING A PLURALITY OF SUPPORTS SPACED LONGITUDINALLY OF THE CONVEYOR, SAID SUPPORTS EACH COMPRISING A PAIR OF STANDARDS SPACED LATERALLY OF THE CONVEYOR AND MEANS CONNECTING THE STANDARDS OF EACH PAIR, MEANS FOR INTERCONNECTING SAID SUPPORTS COMPRISING TWO LATERALLY SPACED RAILS IN THE FORM OF UPRIGHT RIBBONS WHICH MAY BE BENT TO ADAPT THE CONVEYOR TO A DESIRED PATH, THE UPPER PORTIONS OF THE STANDARDS BEING DOWNWARDLY SLOTTED TO PROVIDE A PAIR OF 